Issued:

2012-02-16

Updated:

2012-02-16

RHSA-2012:0143 - Critical: xulrunner security update

Synopsis

Critical: xulrunner security update

Type/Severity

Security Advisory Critical

Topic

Updated xulrunner packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having critical security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Description

XULRunner provides the XUL Runtime environment for applications using the Gecko layout engine.

A heap-based buffer overflow flaw was found in the way XULRunner handled PNG (Portable Network Graphics) images. A web page containing a malicious PNG image could cause an application linked against XULRunner (such as Firefox) to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-3026)

All XULRunner users should upgrade to these updated packages, which correct this issue. After installing the update, applications using XULRunner must be restarted for the changes to take effect.

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at This content is not included.https://access.redhat.com/kb/docs/DOC-11259

Affected Products

Updated Packages

• xulrunner-devel-1.9.2.26-2.el6_2.i686.rpm
• xulrunner-devel-1.9.2.26-2.el5_7.s390.rpm
• xulrunner-devel-1.9.2.26-2.el6_2.ppc.rpm
• xulrunner-1.9.2.26-2.el5_7.x86_64.rpm
• xulrunner-debuginfo-1.9.2.26-2.el6_2.s390x.rpm
• xulrunner-debuginfo-1.9.2.26-2.el6_2.ppc.rpm
• xulrunner-1.9.2.26-2.el6_2.src.rpm
• xulrunner-devel-1.9.2.26-2.el6_2.s390x.rpm
• xulrunner-1.9.2.26-2.el5_7.src.rpm
• xulrunner-devel-1.9.2.26-2.el5_7.ppc64.rpm
• xulrunner-1.9.2.26-2.el6_2.ppc64.rpm
• xulrunner-devel-1.9.2.26-2.el5_7.x86_64.rpm
• xulrunner-1.9.2.26-2.el6_2.s390.rpm
• xulrunner-1.9.2.26-2.el5_7.ppc64.rpm
• xulrunner-debuginfo-1.9.2.26-2.el6_2.x86_64.rpm
• xulrunner-1.9.2.26-2.el6_2.ppc.rpm
• xulrunner-debuginfo-1.9.2.26-2.el6_2.i686.rpm
• xulrunner-1.9.2.26-2.el5_7.s390.rpm
• xulrunner-devel-1.9.2.26-2.el5_7.ppc.rpm
• xulrunner-1.9.2.26-2.el6_2.x86_64.rpm
• xulrunner-debuginfo-1.9.2.26-2.el6_2.s390.rpm
• xulrunner-1.9.2.26-2.el5_7.i386.rpm
• xulrunner-1.9.2.26-2.el6_2.i686.rpm
• xulrunner-devel-1.9.2.26-2.el6_2.ppc64.rpm
• xulrunner-1.9.2.26-2.el5_7.ia64.rpm
• xulrunner-devel-1.9.2.26-2.el6_2.x86_64.rpm
• xulrunner-1.9.2.26-2.el5_7.ppc.rpm
• xulrunner-1.9.2.26-2.el6_2.s390x.rpm
• xulrunner-devel-1.9.2.26-2.el5_7.ia64.rpm
• xulrunner-debuginfo-1.9.2.26-2.el6_2.ppc64.rpm
• xulrunner-devel-1.9.2.26-2.el5_7.i386.rpm
• xulrunner-devel-1.9.2.26-2.el5_7.s390x.rpm
• xulrunner-1.9.2.26-2.el5_7.s390x.rpm
• xulrunner-devel-1.9.2.26-2.el6_2.s390.rpm

Fixes

• This content is not included.BZ - 790737

CVEs

• CVE-2011-3026

References

• https://access.redhat.com/security/updates/classification/#critical

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.